The jsonDecode() method will parse the String and return it as a Map. Then to retrieve, we can use getString() which will return a value of type String? which we pass to jsonDecode(). Then using the jsonEncode() method we can convert the object to a JSON string and store it. Here we first create a storingPayment() method and inside the method create an instance of Payment class. So first to add it you need to navigate to the pubspec.yaml file, and write the following:Ĭlass _MyHomePageState extends State Shared preferences will store data locally on the device, so for example if you want to use some data in a different page then you can use the Shared Preferences to store and retrieve that data. To learn about null safety then check null safety in dart Adding Shared Preferences to Flutter If you are using an older version then do flutter upgrade. Android Studio (version 4.0 ) IntelliJ IDEA Community Edition (version 2020.1 ) VS Code (version 1.54.3 ) Connected device (1 available ) ! Doctor found issues in 1 category. Without CocoaPods, plugins will not work on iOS or macOS. ĬocoaPods is used to retrieve the iOS and macOS platform sides plugin code that responds ! CocoaPods 1.9.0 out of date (1.10.0 is recommended ). ĭownload the latest version or update via the Mac App Store. ✗ Xcode 10.1.0 out of date (12.0.1 is recommended ). Flutter (Channel stable, 2.0.0, on Mac OS X 10.14.6 18G103 darwin-圆4, locale en-LB ) Android toolchain - develop for Android devices (Android SDK version 29.0.2 ) Xcode - develop for iOS and macOS Doctor summary (to see all details, run flutter doctor -v ):
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